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Finding the Fourth Proportional to 361,443.20, 541,387.20 and 299,235.20

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Solution

The fourth proportional to 361,443.20, 541,387.20 and 299,235.20 is: 448,209.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,443.20 : 541,387.20 = 299,235.20 : x
  2. Step 2: Convert to fraction form
    361,443.20/541,387.20 = 299,235.20/x
  3. Step 3: Cross multiply
    361,443.20x = 541,387.20 × 299,235.20
  4. Step 4: Simplify right side
    361,443.20x = 162,002,107,069.44
  5. Step 5: Solve for x
    x = 162,002,107,069.44/361,443.20
  6. Step 6: Final answer
    x = 448,209.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.